Thats ok with the buttons and progress bar... still interested, pm me source if u would plz. Wondering about CRC on the custom HUDS and Menus though. I'll check into that later (I've only unpacked a few files.) If I get it working this will also allow for custom RIMS!!! Shiggity shwa??? That's right CUSTOM RIMS!
I've also gotton custom tire smoke to SOMEWHAT work today... lol, blue and green smoke. lawl. It's in the lightmap.dat in the track folder 256 by 260 pixels, I don't remember which is width, DXT3, no mips, zLib compressed. No idea what the long int at the beginning of the file is, but it is the same for every track i believe.
I was trying to make tracks dark but it's clear to me now that it is in the .xb2 which I have unpacked before. I remember seeing a bunch of lightmaps and volume textures etc in there.